公开(公告)号：EP3939957A1

公开(公告)日：2022-01-19

申请号：EP20770715.9

申请日：2020-02-26

申请人： Mitsubishi Chemical Corporation

发明人： UCHIYAMA, Kei ,  YOKOGI, Masashi ,  SHIBATA, Hiroki ,  TOMITA, Sora ,  YAYAMA, Yuichi ,  TSURUHARA, Kenji ,  YOSHIDA, Takayuki ,  NAKASHIMA, Yukie ,  KONISHI, Rie ,  HIROWATARI, Kazuo

IPC分类号： C07C39/15 ,  C08G64/04 ,  C08G64/06 ,  C07C37/20

摘要： A bisphenol composition comprising 95% or more by mass of a bisphenol,
wherein a bisphenol represented by the following general formula (II) in the bisphenol composition constitutes 150 mass ppm or more, and
the bisphenol composition has a methanol dissolution color (Hazen color number) of 2 or less,
wherein X denotes a single bond, -CR 11 R 12 -, -O-, -CO-, - S-, -SO-, or -SO 2 -, R 11 and R 12 independently denote a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and R 11 and R 12 may be bonded to each other to form a ring. A method for producing a polycarbonate resin using the bisphenol composition.

公开(公告)号：EP3940015A1

公开(公告)日：2022-01-19

申请号：EP20770142.6

申请日：2020-02-26

申请人： Mitsubishi Chemical Corporation

发明人： UCHIYAMA, Kei ,  YOKOGI, Masashi ,  SHIBATA, Hiroki ,  TOMITA, Sora ,  YAYAMA, Yuichi ,  TSURUHARA, Kenji ,  YOSHIDA, Takayuki ,  NAKASHIMA, Yukie ,  KONISHI, Rie ,  HIROWATARI, Kazuo

IPC分类号： C08G64/04 ,  C07C37/20 ,  C07C39/15 ,  C07C39/16 ,  C07C39/17 ,  C08G64/06

摘要： A bisphenol composition comprising 95% or more by mass of a bisphenol and 200 mass ppm or more of a compound represented by the following general formula (II),

wherein R 21 and R 22 denote a methyl group or a hydrogen atom, R 22 is a methyl group when R 21 is a hydrogen atom, R 22 is a hydrogen atom when R 21 is a methyl group, R 23 to R 25 independently denote a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and R 23 , R 24 , and R 25 may be bonded or cross-linked between two of the groups. A method for producing a polycarbonate resin using the bisphenol composition.